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OpenStudy (anonymous):
A pair of coins is tossed. What is the probability of two tails? A. 1 B. 1/2 C. 1/4
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OpenStudy (anonymous):
B
OpenStudy (anonymous):
why? H H H T T H T T Wouldn't it be 1/4?
OpenStudy (amistre64):
it would be best to write out the sample space of all possible outcomes
OpenStudy (anonymous):
it's b?
OpenStudy (amistre64):
1 in 4 is correct; 1/4
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OpenStudy (anonymous):
Thanks
OpenStudy (amistre64):
it is best to ignore people who just give an answer as they have no proof to back themselves up with.
OpenStudy (anonymous):
1/4 is correct
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